Permanent PTZ (Pan-Tilt-Zoom) traffic cameras (i.e. controllable cameras whose feed streams back to a traffic control center) are often panned, tilted, and zoomed throughout the day as operators respond to congestion, an incident or a collision. And even if operators do not move the camera, cameras can still move if the support medium they are affixed to move, typically from sway in the wind or vibrations caused by heavy vehicles transmitted through the ground and the support medium. Read more